Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/433a9ee7697a
Author: Fernando Campo <fernando.campo@o2.com>
Desc: Merge pull request #11124 from fcampo/2error-sendingSms

Bug 891855 - [sms][mms] Gaia should handle the error codes properly to pop up reasonable prompt

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https://hg.mozilla.org/integration/gaia-central/rev/6c507e68f733
Author: Fernando Campo <fernando.campo@o2.com>
Desc: Bug 891855 - [sms][mms] Gaia should handle the error codes properly to pop up reasonable prompt